Damper lever e.g. lifting limb, for damper arrangement of impeller, has damper lever body formed from multilayered wood bonding material i.e. bullet proof wood, in sections with density larger or equal to specific value

摘要

The damper lever (1) has a damper lever body (2) formed from a multilayered wood bonding material i.e. Panzer wood(RTM: bullet proof wood) in sections with a density larger or equal to 0.9 gram per cubic centimeter. The wood bonding material includes a synthetic resin compressed wood layer formed from longitudinal, transverse or star shaped laminated beech wood veneers, where the wood veneers are impregnated with synthetic resin in a vacuum method. The wood bonding material includes non-wood layers such as sheet metal layer, ceramic layer or a mineral layer. An independent claim is also included for a damper arrangement of an impeller, comprising multiple damper levers.